Two monocyte-type cells showed erythrocytes either at contact or intruding in the monocyte cytoplasm, For one of the cells, the erythrocyte was covered with cytoplams-like material. For the other monocyte, a rectangular crystal could be identifiedat contact to the monocyte nucleus and superposed possibly to the erythrocyte. Other monocyte/polymorphonuclear type cells showing nuclei with aberant shapes, in part lytic, could be observed.
Cerebrospinal fluid, cytocentrifugation, May-Grunwald-Giemsa stain.